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The tough-tackling centre's defence and organisation was missed in the Reds' 38-9 playoff loss to the Crusaders two weeks ago due to a hamstring injury, but he had also been hampered by the shoulder problem for much of 2013 and he decided it was best to act now.

Immensely disappointed

"I've been carrying this shoulder injury throughout the last season and I feel that it is not in the best interests of my teammates at the Reds nor the Wallabies squad to continue to do so," Faingaa wrote on his Facebook page.

"I'm immensely disappointed not to be joining my brother, Saia, at the Wallabies camp on Monday.

"We missed the last tour together and now we are to be split apart again because of my surgery and recovery."